Added a DIY Fingerprint sensor for Home Assistan

[kyleharte]

Describe the proposed change

Added a DIY fingerprint sensor as it would be extremely helpful for the thinkers of us that like to build their own advanced security system in home assistant.

The link

https://hackaday.com/2020/05/28/home-assistant-get-fingerprint-scanning/

[yayadrian]

@kyleharte I like hackaday but I think this should point to the original content creator. For this post it should be: https://everythingsmarthome.co.uk/how-to-build-a-wifi-connected-fingerprint-sensor-with-home-assistant/